kernel/sequencer input predicate

Context

Not all messages are needed for the sequencer kernel. That's why an input predicate can be provided to the kernel_sequencer_entry function to allow user to filter the different messages.

By default if not provided, all messages will be accepted

The !8626 (merged) is required.

You can start review it at commit: "kernel/sequencer: add an input predicate"

Manually testing the MR

Checklist

• Document the interface of any function added or modified (see the coding guidelines)
• Document any change to the user interface, including configuration parameters (see node configuration)
• Provide automatic testing (see the testing guide).
• For new features and bug fixes, add an item in the appropriate changelog (docs/protocols/alpha.rst for the protocol and the environment, CHANGES.rst at the root of the repository for everything else).
• Select suitable reviewers using the Reviewers field below.
• Select as Assignee the next person who should take action on that MR